Review the item:
With sharp scissors, Thinh tried to even her client's hair, but the
woman kept twisting in her seat to yell at her two small
children who were terrorizing the salon, Thinh
finally decided that crooked ends were better than poking out a client's
eye.
The woman kept twisting in her seat to yell at her two small children is a main clause. Who were terrorizing the salon is an adjective clause. An adjective clause is an incomplete thought and must be connected to a main clause. When an adjective clause follows a main clause, you often do not use any punctuation.